This is my first time visiting the store, unfortun...

This is my first time visiting the store, unfortunately a very bad experience. The staff there are rude and unprofessional. After standing on the line for about half an hour to exchange my iPhone 6, I was told to wait on other line outside the store because she only did return. No apologies and even blamed me not to ask beforehand. I let her know I did ask two different people in the blue shirt, then she lost her patience and told me that she was not the one who gave me the wrong info. I will never visit this store again, and I will recommend Apple to retrain their employees.